Hey,
i've run into this problem a couple of times: I want to update Resolume and in the process the update gets cancelled because i have After Effects or AME running in the background. Arena then installs, alley gets updated too, but next time i open After Effects it tells me DXV Codec support is broken.
Wouldnt it be nice if the update process halts, asks you kindly to close all Adobe Programms and then continues to complete the update? A lot of update programs work this way.
Cheers, Max